Data collection apparatus for attachment to an injection device

2. The data collection device according to claim 1, wherein the light source and the optical sensor are supported on a side of the data collection device, wherein the side of the data collection device is configured to abut the dose setting dial of the medicament administration device.

3. The data collection device according to claim 1, wherein the attachment assembly is configured to releasably attach the data collection device to the dose setting dial of the medicament administration device.

4. The data collection device according to claim 1, wherein the light source and optical sensor are located proximally of the dose setting dial when the data collection device is attached to the dose setting dial such that the light path between the light source, the internal component and the optical sensor passes through a proximal end surface of the dose setting dial.

5. The data collection device according to claim 1, wherein the light source is configured to transmit electromagnetic radiation at least partially through the dose setting dial of the medicament administration device.

6. The data collection device according to claim 5, wherein the electromagnetic radiation is infrared light.

7. The data collection device according to claim 1, wherein the data collection device comprises an electronics assembly comprising the light source and the optical sensor.

8. The data collection device according to claim 7, wherein the electronics assembly and the attachment assembly are fixedly connected together.

9. The data collection device according to claim 8, wherein the electronics assembly is configured to abut a proximal end surface of the dose setting dial when the data collection device is attached to the dose setting dial.

10. The data collection device according to claim 1, wherein the processor arrangement is configured to detect an occurrence of two separate medicament deliveries and to amalgamate the two medicament deliveries when it is determined that the two deliveries occurred within a predetermined time of each other.

11. The data collection device according to claim 1, wherein the processor arrangement is configured to determine, from the signals received from the optical sensor, an amount of rotation of the internal component.

12. The data collection device according to claim 1, wherein the data collection device further comprises a switch configured to be triggered by application of a force to a proximal end of the data collection device and wherein triggering of the switch is configured to cause activation of the light source, the optical sensor and the processor arrangement.

13. The data collection device according to claim 12, wherein the switch is an optical wake-up sensor configured to sense a reflectance and/or color of an underlying component of the medicament administration device and to provide a wake-up signal when a change in the reflectance and/or color is detected.

14. A data collection device according to claim 12, further comprising a timer, wherein the switch is configured to trigger activation of the timer and wherein the data collection device is further configured to determine an elapsed time since the timer was last triggered and to generate an alert if the elapsed time is inconsistent with a threshold condition.

15. A data collection device according to claim 14, wherein the processor arrangement is configured to: determine a time stamp for the medicament delivery using the timer and to store the determined medicament dosage and the time stamp; and transmit a log of determined internal component rotation angles and time stamp information to another device.

16. The data collection device according to claim 12, wherein the switch comprises electrodes configured to contact one another in response to the force applied to the proximal surface of the housing.

17. The data collection device according to claim 1, further comprising a PCB, where in the light source and the optical sensor are positioned on a side of the PCB facing away from the proximal surface of the housing.

18. The data collection device according to claim 1, wherein the light source and the optical sensor are configured such that a distance of a light path between the light source and the optical sensor during dose dispensing is less than a distance of the light path between the light source and the optical sensor during dose dialing.

20. A system according to claim 19, wherein the light source and the optical sensor are supported on a side of the data collection device which abuts the dose setting dial of the medicament administration device.

21. The system according to claim 19, wherein the pattern of relatively reflective and non-reflecting regions comprises evenly spaced relatively reflective and non-reflecting regions formed on a proximal end surface of the internal component.

22. The system according to claim 19, where the light source and optical sensor are located between the attachment assembly and the dose setting dial when the data collection device is attached to the dose setting dial such that the light path between the light source, the internal component and the optical sensor passes through the dose setting dial.

23. The system according to claim 22, where the light path between the light source, the internal component and the optical sensor also passes through a part of the dose delivery button.